Sewing-machine attachment



(No ModeL) G. L. GRAY.

SEWING MAGHINE ATTACHMENT.

Patented Apr. 14, 1885. f

UNITED STATES Pnfrnnr SEWING-MACHINE ATTACHMENT.

$PBCIPICA'1ION forming part of Letters Patent No. 815,935, dated April14, 1885.

Application filed March 15, 1884.

To all whom it may concern.-

Be it known that I, GEORGE L. GRAY, a citizen of the United fitates,residing in the county of Cook and State of Illinois, have inventedcertain new and useful Improvements in Sewing-Machine Attachments, ofwhich the following is a specification, to wit:

This invention relates to an improvement in sewing-machines; and itconsists in the peculiar construction and arrangement of devices bywhich the presser-foot is lifted at each stroke of the needle to freethe garment and facilitate turning, substantially as will be hereinaftermore fully set forth and claimed.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the accompanying drawings, inwhich- Figure 1 is a side View of my invention ap plied to asewing-machine, and Fig. 2 is a central vertical section of the same,and Fig. 3 is a modification.

A. represents the head of a sewing-machine, B the needle-bar, and O thepresserbar, of any of the ordinary and well-known constructions.

To the lower end of the presser-bar O is removabl y secured, by aset-screw,a small block, D, formed with vertical slot (1 in rear of thebar anda slot, cl, in its rear side, as in Fig. 2. To the rear side ofthe block is also secured (or formed therewith) a projecting frame orflange, (2 through which passes loosely a thumb-screw, E. Thepresser-foot G is formed with a flat shank, g, passing upward throughthe slot (1, and provided with a projection or lug, 9, working in-therear slot, (2, as shown. Into this lug g is passed the end of the screwE, and around thescrew, between the lug and the frame or flange dais aspring,e, which tends to press the foot down to its lowestpoint at alltimes. Upon the side of the block D is fulcrumed a lever, H, its forwardend extending out far enough to contact with the needle-bar l3, and itsrear end bent around beneath the end of the screw E.

By reference to the drawings it will be read- (No model.)

ily understood that at every downward stroke of the needle-bar itdepresses the outer end of the lever H, thereby lifting its inner end,and with it the foot G, thus releasing the goods for an instant, andallowing of their being turned in any direction without twisting orstraining them. The amount of motion given to the presser-foot may beregulated or stopped altogether by turning the screw E.

A modification of the device is shown in Fig. 3, in which thepresser-foot, instead of sliding vertically through the block I), issecured to or forms a part ofa spring arm or loop secured to said block,and provided with the regulatingscrew, as shown. 7 This device isapplied readily to any ma chine without material change, and is of greatadvantage in binding, braiding, and similar uses requiring sudden turns,and does not twist or strain the material.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. A presser-bar having aslotted block re movably secured to its lowerend, in combination with a needle-bar and a pressenfoot slidingvertically through said block, and provided with a projection throughwhich passes a spring-actuated adj ustingscrew, and a lever fulcrumed onthe presser-bar, and having its forward end extended out to contact withthe needle-bar and its rear end resting beneath the adj listing-screw,substantially as shown and described.

2. The presser-bar C and detachable block or frame D, formed with theslots d d and projecting flange or frame (2 and needle-bar B, incombination with the foot G, having a shank, g, and projection g, thescrew E, spring 6, and lever H, substantially as and for the purpose setforth.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE L. GRAY.

Witnesses:

W. G. MAcAnrnUn, Guns. KRESSMANN.

